Analysis of South America coins of the XIX and XX centuries by XRF technique
DOI:
https://doi.org/10.15392/bjrs.v9i1A.1433Palabras clave:
XRF, Archaeometry, XX and XIX century coins.Resumen
In this work, the elemental composition of 21 coins from nineteenth and twenty centuries of South America belonging to a private collection were performed using the X-Ray Fluorescence (XRF). Different coin numismatic catalogs were used as reference material. The XRF measurements were performed using ARTAX 200 system (Bruker AXS Inc., Madison, WI, USA), which consists of an X-ray tube with Mo anode and a Silicon Drift Detector. The analyses were performed with a voltage and current of 40 kV and 600 μA, respectively, and an acquisition time of 100 s. It was possible to evaluate that all twenty-one pieces were made from metallic alloys. The major elements found were Fe, Cu, Ni, Zn and Sn. Twenty coins were consistent with their cataloged version, on the other hand, only one coin showed a different chemical composition from its cataloged version. So, this result can be an indication that this coin may be a fake.Descargas
Referencias
PITARCH, A., QUERALT, I., Energy dispersive X-ray fluorescence analysis of ancient coins: the case Greek silver drachmae from the Emporion site in Spain, Nuclear Instruments and Methods in Physics Research Section B, v. 268, pp.1682-1685, 2010.
M.VADRUCCI. MAZZINGHI, A., GORGHINIAN, A., PICARDI, L., RONSIVALLE, C., RUBERTO, C., CHIARI, M., Analysis of Roman Imperial coins by combined PIXE, HE-PIXE and μ-XRF, Applied Radiation and Isotopes, v. 143, p. 35-40, 2019.
NAVAS, M. J., ASUERO, A. G., JIMÉNEZ, A. M., A Review of Energy Dispersive X-Ray Fluorescence (EDXRF) as an Analytical Tool in Numismatic Studies, Applied Spectroscopy, v. 70, p. 207-221, 2016.
COLNECT. Coin catalog. Spain. Available at: <https://colnect.com/es/coins/countries>. Last accessed: 10 May. 2019.
COINS AND CURRENCY. South America gallery. Available at: <http://www.coins.calkinsc.com/southamerica_gallery.html>. Last accessed: 12 May. 2019.
CORSI, J., LO GIUDICE, A., RE, A., AGOSTINO, A., BARELLO, F., Potentialities of X-ray fluorescence analysis in numismatics: the case study of pre-Roman coins from Cisalpine Gaul, Archaeological and Anthropological Sciences, v. 10, p. 431-438, 2018.
GORGHINIAN, A., ESPOSITO, A., FERRETTI, M., CATALLI, F., XRF analysis of Roman Imperial coins, Nuclear Instruments and Methods in Physics Research Section B, v. 309, p. 268-271, 2013.
SOLÉ, V.A., PAPILLON, E., COTTE, M., WALTER, P., SUSINI, J., A multiplatform code for the analysis of energy-dispersive X-ray fluorescence spectra, Spectrochimica Acta Part B: Atomic Spectroscopy, v. 62, p. 63-68, 2007.
CDA: Copper Development Association. The cooper advantage: A guide to working with copper and copper alloys, United State of America, 2010, p.28.
ORTEGA-SAN‐MARTÍN, L., SARANGO‐RAMÍREZ, M. K., GALARRETA, B. C., Modern coin debasement discovered by combined portable X‐ray fluorescence and atomic absorption spectroscopy in Peruvian cent coins (1950–1965), X-ray Spectrometry, v. 48, p. 21-28, 2019.
GARDAM, G. E., The colours of some metals and alloys, The International Journal of Surface Engineering and Coating, v.1, 186-188, 2017.
CDA: Copper Development Association. Brasses: Properties applications. United State of America. Available at: <https://copperalliance.org.uk/knowledge-base/resource-library/brasses-properties-applications/>. Last accessed: 13 Dec. 2019.
Descargas
Publicado
Número
Sección
Licencia
Derechos de autor 2021 Brazilian Journal of Radiation Sciences (BJRS)
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
Licencia: los artículos de BJRS tienen una licencia internacional Creative Commons Attribution 4.0, que permite el uso, el intercambio, la adaptación, la distribución y la reproducción en cualquier medio o formato, siempre que se otorgue el crédito correspondiente al autor o autores originales y a la fuente, proporcione un enlace a la licencia Creative Commons e indique si se realizaron cambios. Las imágenes u otros materiales de terceros en el artículo están incluidos en la licencia Creative Commons del artículo, a menos que se indique lo contrario en una línea de crédito al material. Si el material no está incluido en la licencia Creative Commons del artículo y su uso previsto no está permitido por la regulación legal o excede el uso permitido, el autor deberá obtener el permiso directamente del titular de los derechos de autor. Para ver una copia de esta licencia, visite http://creativecommons.org/licenses/by/4.0/
